Omniauth Callback for permission denied

Question

Maybe this is a simple question, but I have rails 4 app using omniauth and devise and I can't figure out how to set a route for the failure to authenticate a user specifically on permission denied. How would I do this? I need to send permission denials to a specific place in my app.

Answer 1

user = User.from_omniauth(env["omniauth.auth"])
if user.persisted?
 flash[:notice] = "You are in..!!!"
 sign_in_and_redirect(user)
else
 session["devise.user_attributes"] = user.attributes
 redirect_to new_user_registration_url
end

def failure
  #handle you logic here..
  redirect_to root_path 
end